PIX12–17–24kV - Schneider Electricms.schneider-electric.be/OP_MAIN/PIX/AMTNoT060_en.pdf ·...
Transcript of PIX12–17–24kV - Schneider Electricms.schneider-electric.be/OP_MAIN/PIX/AMTNoT060_en.pdf ·...
PIX 12–17–24 kVAir-insulated switchgear withvacuum switching devices
InstallationOperationMaintenance
No. AMTNoT 060-02
Edition 03/2009
AREVA T&D
AIR-INSULATED SWITCHGEARS
Technical Manual
© AREVA Energietechnik GmbH – Sachsenwerk Medium Voltage -2009-All rights reserved to this technical instruction.Reproduction and making available of this technical instruction, or extracts, to third parties are prohibited.Only integral reproduction of this technical instruction is permitted with the written permission from AREVA Energietechnik GmbH –Sachsenwerk Medium Voltage.Electronic copies in e.g. PDF-format or scanned version have the status “for information only” .The only valid version of technical Instructions are always enclosed directly to the product in question by the factory.
AREVA T&D Worldwide Contact Centre
http://www.areva-td.com/contactcentre� +44 (0) 1785 250 070
Manufacturer:
AREVA Energietechnik GmbH – Sachsenwerk Medium VoltageRathenaustrasse 2D-93055 Regensburg, Germany� +49 (0) 9 41 46 20-0� +49 (0) 9 41 46 20-418
Service:Should you have any queries as to our service, please contact:
AREVA Energietechnik GmbH – Sachsenwerk Medium VoltageService-CenterD-93055 Regensburg, Germany� +49 (0) 9 41 4620-777� +49 (0) 9 41 4620-778
Remarks on this manual . . . . . . . . . . . . . . . . . . . . . . . . . . .6Purpose and target group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6Reference documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6Terms and symbols used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7Abbreviations used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7Any questions or suggestions? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
1 Safety provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
2 Design and description . . . . . . . . . . . . . . . . . . . . . . . .92.1 Panel design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92.2. Panel variants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112.2.1 Feeder panels with switching devices . . . . . . . . . . . . . . . . . . . . . . . . .112.2.2 Panels for bus section coupler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122.2.3 Panels with busbar voltage transformer and earthing switch . . . . . .132.3 Dimensions and weights (without packaging) . . . . . . . . . . . . . . . . . . . . .142.4 Applied standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .172.5 Environmental and operating conditions . . . . . . . . . . . . . . . . . . . . . . . . .172.6 Ratings of the PIX series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .182.7 Nameplate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .182.8 Technical data of electrical control and operating devices . . . . . . . . . .192.9 Utilization in line with the intended purpose . . . . . . . . . . . . . . . . . . . . . .202.10 Disposal after the end of the useful life . . . . . . . . . . . . . . . . . . . . . . . . . .20
3 Packaging, transport, delivery and storage . . . . .213.1 Shipping units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .213.2 Transport . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .223.3 Delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .223.4 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
4 Access to the main circuit compartments . . . . . .244.1 Safety provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .244.2 Access to the cable compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .244.2.1 Removal of the cable compartment cover . . . . . . . . . . . . . . . . . . . . . .244.2.2 Removing the truck carrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .254.3 Access to switching device compartment . . . . . . . . . . . . . . . . . . . . . . . .264.3.1 Opening and closing the front door . . . . . . . . . . . . . . . . . . . . . . . . . . .264.3.2 Removing the transport lock of the truck . . . . . . . . . . . . . . . . . . . . . .274.3.3 Removing and connecting the low-voltage connector . . . . . . . . . . . .274.3.4 Removing the truck from the panel . . . . . . . . . . . . . . . . . . . . . . . . . . .284.3.5 Inserting the truck into the panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . .304.4 Access to the busbar compartment . . . . . . . . . . . . . . . . . . . . . . . . . . . . .314.4.1 Front access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .314.4.2 Top access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32
Content
PIX 12–17–24 kV | Installation – Operation – Maintenance 3
4 PIX 12–17–24 kV | Installation – Operation – Maintenance
5 Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .335.1 Safety provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .335.2 Important information for assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .335.3 Transport of the panels / trucks on the construction site . . . . . . . . . . . .345.3.1 Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .345.3.2 Trucks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .355.4 Requirements regarding the switchgear room . . . . . . . . . . . . . . . . . . . .355.5 Aligning and fastening panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .375.6 Screw-fastening the panels to one another . . . . . . . . . . . . . . . . . . . . . .385.7 Installation of the busbar bushings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .395.8 Busbar assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .405.8.1 Arrangement of busbars in branch-circuit panels . . . . . . . . . . . . . . .405.8.2 Arrangement of the lower busbars in bus section couplers . . . . . . .405.8.3 Mounting busbars . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .405.9 Assembly of the earth bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
6 High-voltage connection . . . . . . . . . . . . . . . . . . . . . .436.1 Overview of cable connection system . . . . . . . . . . . . . . . . . . . . . . . . . . .436.2 Adjusting the cable connection height . . . . . . . . . . . . . . . . . . . . . . . . . . .446.3 Connection of high-voltage cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .456.4 High-voltage connection to rear of panel (optional) . . . . . . . . . . . . . . . .47
7 Low-voltage connection . . . . . . . . . . . . . . . . . . . . . .487.1 Open low-voltage compartment door . . . . . . . . . . . . . . . . . . . . . . . . . . .487.2 Attachment of the low-voltage compartment . . . . . . . . . . . . . . . . . . . . .487.3 Connection of the ring circuits in the low-voltage compartment . . . . .487.4 Connecting external cables in the switchgear panel . . . . . . . . . . . . . . .497.4.1 Routing the external cables through the panel's internal cable duct 497.4.2 Routing the external cables through an additional
cable duct (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
8 Commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .508.1 Final steps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .508.2 Checking switching functions and interlocks . . . . . . . . . . . . . . . . . . . . .518.3 Power frequency test for busbar (optional) . . . . . . . . . . . . . . . . . . . . . . .528.4 Cable test after assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53
9 Voltage indicators . . . . . . . . . . . . . . . . . . . . . . . . . . .549.1 Voltage Detection Systems (VDS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .549.2 Voltage Present Indicating System VPIS . . . . . . . . . . . . . . . . . . . . . . . . .559.3 Phase comparators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
10 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5710.1 Operator interfaces of panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5710.2 Operation accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5810.3 Trucks for PIX panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5910.4 Interlocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6110.4.1 Mechanical interlocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6110.4.2 Electromagnetic interlocks (optional) . . . . . . . . . . . . . . . . . . . . . . . . . .6110.4.3 Mechanical lock-outs due to padlocks . . . . . . . . . . . . . . . . . . . . . . . .6210.4.4 Interlocks by means of cylinder locks (optional) . . . . . . . . . . . . . . . . .6310.4.5 Supplementary interlocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
Content
PIX 12–17–24 kV | Installation – Operation – Maintenance 5
10.5 Operating specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6410.6 Operating the circuit-breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6510.6.1 Charging the circuit-breaker’s energy storing device . . . . . . . . . . . .6510.6.2 Operating the circuit-breaker manually . . . . . . . . . . . . . . . . . . . . . . . .6510.6.3 Switching the circuit-breaker electrically . . . . . . . . . . . . . . . . . . . . . . .6610.6.4 Position indicators on circuit-breaker and possible
operating sequences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6610.7 Move truck into service/disconnected position . . . . . . . . . . . . . . . . . . . .6710.7.1 Racking-in the truck from disconnected into service position . . . . .6710.7.2 Racking-out the truck from service into disconnected position . . . .6710.8 Vacuum contactor CVX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6810.8.1 Fuse tripping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6910.9 Operating the earthing switch manually . . . . . . . . . . . . . . . . . . . . . . . . . .7010.9.1 Switching ON the earthing switch . . . . . . . . . . . . . . . . . . . . . . . . . . . .7010.9.2 Switching earthing switch OFF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7010.10 Standard switching operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7110.10.1 Operating feeder cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7110.10.2 Earthing the feeder cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7110.10.3 Coupling busbar sections via bus section coupler . . . . . . . . . . . . . .7210.11 Earthing the busbar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7310.11.1 Earthing the busbar with the circuit-breaker of an
feeder panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7310.11.2 Earthing the busbar with busbar earthing switch
in the metering panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7410.11.3 Earthing the busbar with busbar earthing switch . . . . . . . . . . . . . . . .74
11 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7511.1 Safety provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7511.2 Servicing schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7511.3 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7611.4 Avoid condensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7611.5 Corrosion protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7611.6 Replacement of components and panels . . . . . . . . . . . . . . . . . . . . . . . .7611.7 Lubrication instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7711.8 Replacing fuse of voltage transformer . . . . . . . . . . . . . . . . . . . . . . . . . .78
12 Annex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7912.1 Auxiliary products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7912.2 Treatment of firmly screw-connected contact surfaces . . . . . . . . . . . . .7912.3 Screw fastenings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8012.4 Required tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8012.5 Operation accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8112.5.1 Transport trolley for truck . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8112.5.2 Handling crane for trucks (optional) . . . . . . . . . . . . . . . . . . . . . . . . . .8212.6 List of the assembly drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82
Content
6 PIX 12–17–24 kV | Installation – Operation – Maintenance
Remarks on this manual
As our products are subject to continuous further development, we reserve theright to make changes regarding standards, illustrations and technical data.
All dimensions specified in this manual are in millimeters.
Purpose and target group
This Technical Manual describes installation, assembly, operation and mainte-nance of air-insulated medium-voltage switchgear of the PIX series.
It is exclusively intended for use by the manufacturer's staff or by persons cer-tified for the PIX series (training certificate).
This Technical Manual is an integral part of the product and must be stored insuch a way that it is at all times readily accessible for and can be used by per-sons who are to work on the switchgear. If the switchgear is relocated to an-other site, this Technical Manual must be passed on to the new operatorsalong with the unit.
Further applicable documents
The following additional documents must be observed for this switchgear:
● sales agreement with the stipulations regarding the switchgear-specificequipment and the legal details
● the switchgear-specific circuit diagrams / documentation
● the operating manuals of the low-voltage devices installed in theswitchgear (e.g. voltage indicators, devices in low-voltage compartment)
● the assembly drawings supplied with the switchgear
● the assembly instructions of the manufacturer of the cable connectionsystems to be connected to the switchgear
● the assembly and operating instructions of the trucks / additional equip-ment used:
– Circuit-breaker HVX with Ur ≤ 24 kV, Ir ≤ 2500 A(No. AGS 531301-01)
– Circuit-breaker HVX with Ur ≤ 17.5 kV, Ir ≤ 2500 A(No. AGS 531461-01)
– Metering truck MTX (No. AGS 531361-01)
– Disconnector truck UTX (No. AGS 531361-01)
– Vacuum contactor CVX (No. NTV 133)
– Voltage transformer truck in cable compartment (can be racked out)(No. AGS 531505-02)
– PIX Additional Equipment (No. AMTNoT 077-02)
● Motor Control Center with Ur ≤ 7.2 kV (No. AGS 531500-02)
Terms and symbols used
This manual uses certain terms and symbols. They warn about dangers or pro-vide important information which must be complied with to avoid danger topersonnel and damage to equipment:
„Warning“This danger symbol warns about dangerous electrical voltage. Con-tact with voltage may result in fatal injury!
„Warning“This danger symbol warns about the risk of injury. Please complywith all the provisions identified by this symbol in order to avoiddeath or serious injury.
„Warning“This danger symbol warns about the risk of falling.
„Important“This instruction symbol is used for information which is important to avoid ma-terial damage.
Abbreviations used
“PIX 12”:PIX switchgear for rated voltage Ur = 12 kV
“PIX 17”:PIX switchgear for rated voltage Ur = 17.5 kV
“PIX 24”:PIX switchgear for rated voltage Ur = 24 kV
“Truck”: withdrawable part
Any questions or suggestions?
Do you have any questions or suggestions regarding this manual, or do you re-quire further information?
We always strive to provide you with the best-possible information for opti-mum, safe use of our products. Thus, do not hesitate to contact us if you haveany recommendations, amendments or proposals for improvement.
PIX 12–17–24 kV | Installation – Operation – Maintenance 7
Remarks on this manual
Read these instructions carefully before you work on the switchgear, and per-form the work detailed in them as described. Do not perform any work which isnot described in this manual.
● Common regulations for high-voltage switchgear and control gear:IEC 62271-1
● The locally applicable accident prevention, operating and work instruc-tions must be complied with.
● Installation: IEC 61936-1 / HD 637 S11
● Operation of electrical equipment: EN 50110-11
1 The national standards applicable in the country where the equipment is to be in-stalled must be complied with.
Before performing work on the panel, make sure that you comply withthe following instructions:
Warning!Before starting work on high-voltage components, de-energize thesystem, verify it for zero voltage and earth the system in accor-dance with the applicable safety rules pursuant to EN 50110-1.
Warning!After removal of covers, operator safety in accordance withIEC 62271-200 may be restricted if the appropriate part of theswitchgear panel has not been isolated from the power supply.
Warning!Before performing work on the drive mechanism, switch off the sup-ply voltage and prevent it from reclosing.
Warning!There is a risk of injury when working on the drive mechanism. Be-fore starting work, release the energy-storing device by
– an OFF–ON–OFF operating sequence for the circuit breaker and– closing via the make-proof earthing switch.
For the case of an internal fault, the PIX switchgear features pressure reliefflaps which prevent the panels and the switchgear from bursting.
In case of fire or of internal faults, toxic and caustic decomposition productsmay be produced. Comply with the locally applicable accident and safety pro-visions.
In case of personal injury, take first-aid measures or cause them to be taken.
Behaviour in case of incidents oraccidents
Applicable standards andregulations:
1 Safety provisions
8 PIX 12–17–24 kV | Installation – Operation – Maintenance
Fig. 2.1Feeder panel PIX 12 with circuit-breaker truck HVX (for rated currents ≤ 2500 A)
PIX 12–17–24 kV | Installation – Operation – Maintenance 9
2 Design and description
2.1 Panel design
1 Low-voltage compartment2 Circuit-breaker truck HVX3 Front door4 Earthing switch control element5 Voltage indicator6 Position indicator of earthing switch7 Cable compartment cover8 Voltage transformer (optional)
9 Earth bar10 Current transformer11 Cable connections12 Make-proof earthing switch13 Shutter14 Busbars15 Pressure relief flap of switching device compartment
1
2
8
10
12
13
14
15
3
456
11
9
7
10 PIX 12–17–24 kV | Installation – Operation – Maintenance
14
15
4
2
8
7
6
5
3
12
13
9
10
11
161
Fig. 2.2Feeder panel with circuit-breaker truck HVX (for rated currents≤ 2500 A)
1 Jack rings for transport harness2 Busbars3 Pressure relief duct4 Pressure relief flap of cable compart-
ment5 Earthing switch6 Current transformer7 Cable fastening8 High-voltage cable9 Voltage transformer (optional)10 Cable compartment cover11 Cable connection12 Circuit-breaker truck HVX13 Front door14 Pressure relief flap of switching de-
vice compartment15 Door of low-voltage compartment16 Pressure relief flap of busbar com-
partment
2 Design and description
Fig. 2.3Panel with internal arc classification (IAC)1 Deflector2 Pressure relief duct
1
2
PIX 12–17–24 kV | Installation – Operation – Maintenance 11
2 Design and description
2.2. Panel variants
The subchapters always show panel types with the appropriate basic equip-ment. Customized models with additional equipment are described in theswitchgear-specific documentation.
2.2.1 Feeder panels with switching devices
Fig. 2.4Feeder panel with circuit-breaker truck HVX for rated currents >2500 A and voltage transformer (optional)
Fig. 2.5Feeder panel with circuit-breaker truck HVX for rated currents ≤2500 A and voltage transformer (optional)
Fig. 2.6Panel with disconnector truck UTX
Fig. 2.7“Motor Control Center” panel with vacuum contactor CVX (only12 kV)
12 PIX 12–17–24 kV | Installation – Operation – Maintenance
Fig. 2.11Bus section coupler "Bus riser panel"
Fig. 2.10Bus section coupler "Bus riser panel with disconnector truckUTX"
2 Design and description
Fig. 2.8Bus section coupler "Circuit-breaker panel with earthing switch"
Fig. 2.9Bus section coupler "Bus riser panel with metering truck MTX"
2.2.2 Panels for bus section coupler
PIX 12–17–24 kV | Installation – Operation – Maintenance 13
Fig. 2.12Busbar with fixed busbar voltage transformer
2.2.3 Panels with busbar voltage transformer and earthing switch
Fig. 2.13Busbar with busbar earthing switch
Fig. 2.14Metering panel with metering truck and busbar earthing switch
Fig. 2.15Bus riser panel, optionally available with fixed voltage trans-former
2 Design and description
2.3 Dimensions and weights (without packaging)
For the precise panel dimensions, please refer to the switchgear-specific doc-umentation. These depend on:
● the rated voltage
● the rated normal current
● the rated short-time current and
● additional equipment, e. g.:
– busbar or fan attachments
– rear high voltage cable connection
14 PIX 12–17–24 kV | Installation – Operation – Maintenance
2 Design and description
Fig. 2.16Dimensions of PIX panelsa Panel widthb Panel height (depending on height of low-voltage compartment)c Height of low-voltage compartmentd Panel height without low-voltage compartment and attachmentse Panel depth
e
c
bd
a
Fig. 2.17Dimensions of pressure relief duct and deflector1 Pressure relief duct2 Deflector
968
757
558
600
1
2
PIX 12
PIX 12–17–24 kV | Installation – Operation – Maintenance 15
Panel typeRated current2
[A]Panel width a1
[mm]Weight3
approx. [kg]
– Feeder panel with HVX circuit-breaker– Bus section coupler with HVX circuit-breaker
≤ 1250 650/8004 720
1600/2000 800 850
≥ 2500 1000 1100
– Bus riser panel– Feeder panel with disconnector truck UTX(also for bus section coupler)
≤ 1250 650 650
1600/2000 800 750
≥ 2500 1000 900
Busbar metering panel – 650 600
Feeder panel with vacuum contactor CVX ≤ 400 650 700
Depth and height of panel1
Panel depth e [mm]1405 Standard
1605 in case of two current transformers per phase or panel width 650 mm with Ik = 40 kA
Panel height b [mm]213022302330
depending on the height of the low-voltage compartment c = 530, 630 or 730 mm
Panel height d [mm] 2130 without low-voltage compartment and additional equipment
1 see Fig. 2.162 In case of branch-circuit panels, the rated current refers to the branch circuit (max. busbar nominal current: 4000 A)3 Weight including low-voltage compartment, without voltage transformer and without busbar attachments
Panels with voltage transformer in the branch circuit: + 120 kg
PIX 17
Panel typeRated current2
[A]Panel width a1
[mm]Weight3
approx. [kg]
– Feeder panel with HVX circuit-breaker– Bus section coupler with HVX circuit-breaker
≤ 2000 750 850
≥ 2500 1000 1100
– Bus riser panel– Feeder panel with disconnector truck UTX(also for bus section coupler)
≤ 2000 750 750
≥ 2500 1000 900
Busbar metering panel – 750 650
Depth and height of panel1
Panel depth e [mm]1505 Standard
1605 in case of two voltage transformers per phase
Panel height b [mm]220023002400
depending on the height of the low-voltage compartmentc = 600, 700 and 800 mm
Panel height d [mm] 2200 without low-voltage compartment and additional equipment
2 Design and description
1 see Fig. 2.162 In case of branch-circuit panels, the rated current refers to the branch circuit (max. busbar nominal current: 4000 A)3 Weight including low-voltage compartment, without voltage transformer and without busbar attachments
Panels with voltage transformer in the branch circuit: + 120 kg4 Panel width depends on rated short-time current Ik:
– 650 mm at 31.5 kA– 800 mm at 40 kA(Exception: Panel width 650 mm at 40 kA with panel depth 1605 mm )
16 PIX 12–17–24 kV | Installation – Operation – Maintenance
1 see Fig. 2.162 In case of branch-circuit panels, the rated current refers to the branch circuit (max. busbar nominal current: 4000 A)3 Weight including low-voltage compartment, without voltage transformer and without busbar attachments
Panels with voltage transformer in the branch circuit: + 120 kg4 Panel width depends on rated short-time current Ik:
– 800 at ≤ 25 kA– 1000 at ≤ 31.5 kA
PIX 24
Panel typeRated current2
[A]Panel width a1
[mm]Weight3
approx. [kg]
– Feeder panel with HVX circuit-breaker– Bus section coupler with HVX circuit-breaker
≤ 1600 800 850
≤ 2500 1000 1000
– Bus riser panel– Feeder panel with disconnector truck UTX(also for bus section coupler)
≤ 1600 800 750
2000 800/10004 800
2500 1000 800
Busbar metering panel – 800 700
Depth and height of panel1
Panel depth e [mm] 1605
Panel height b [mm]233024302530
depending on the height of the low-voltage compartmentc = 530, 630 or 730 mm
Panel height d [mm] 2330 without low-voltage compartment and additional equipment
2 Design and description
PIX 12–17–24 kV | Installation – Operation – Maintenance 17
2.4 Applied standards
Series PIX switchgear units with vacuum switching devices are
● metal-enclosed; Loss of service continuity category in accordance withIEC 62271-200: LSC 2B-PM
● type-tested
● optional: tested for internal faults (qualification IAC)
● dimensioned for indoor installation
PIX switchgear units meet the fol-lowing standards and regulations:
Designation IEC standard EN standard
SwitchgearIEC 62271-1IEC 62271-200 EN 62271-200
Circuit-breaker IEC 62271-100 EN 62271-100
Vacuum contactor IEC 60470 EN 60470
Earthing switch IEC 62271-102 EN 62271-102
Disconnector truck IEC 62271-102 EN 62271-102
Current transformers IEC 60044-1 EN 60044-1
Voltage transformer IEC 60044-2 EN 60044-2
Voltage Detecting SystemsIEC 61243-5IEC 61958
EN 61243-5EN 61958
Protection against accidental contact,foreign bodies and water
IEC 60529 EN 60529
Installation IEC 61936-1 HD 637 S1
Operation of electrical equipment – EN 50110-1
Degrees of protection against accidental contact and foreign objectsaccording to IEC 60529
external enclosure of panel IP3X1
between the compartments of the panel IP2X
1 optional IP4X; other values available on request
Degree of protection against acci-dental contact and foreign objects
2 Design and description
2.5 Environmental and operating conditions
PIX is an indoor switchgear and may only be operated under normal conditionsin acc. with IEC 62271-1.
Operation under conditions deviating from these is only admissible subject toconsultation with and written approval from the manufacturer.
Ambient conditions in accordance with IEC 62271-1
Temperature class "minus 5 indoors”1
Min./max. ambient temperature °C –5/+401
Average value over 24 hours °C ≤ 351
mean rel. air humidity: 24 hour/1 month % ≤ 95/≤ 90
Installation altitude above sea-level m ≤ 10001
1 higher values available on request
2 Design and description
18 PIX 12–17–24 kV | Installation – Operation – Maintenance
Fig. 2.18Nameplate on panel front1 Type designation2 Serial number3 Year of construction4 Technical data
12
4
3
2.7 Nameplate
The type designation on the nameplates on the front of the panels (Fig. 2.18)informs about essential technical data. When submitting enquiries to the man-ufacturer or ordering spare parts, the following information is required:
● Type designation
● Serial number
● Year of construction
2.6 Ratings of the PIX series
1 with fan2 The short-circuit capability of the current transformers must be considered separately.
The applicable panel-specific technical data are indicated on the nameplate(see section 2.7 Nameplate) and in the switchgear-specific documentation.
The technical data of the switching device (HVX, UTX) are indicated on thenameplate and in the operating manual of the device concerned.
Switchgear panel PIX 12 PIX 17 PIX 24
Rated voltage Ur [kV] 12 17.5 24
Rated lightning impulse withstand voltage Up [kV] 75 95 125
Rated power frequency withstand voltage Ud [kV] 28 38 50
Rated normalcurrent Ir
Busbar [A]≤ 3150/40001 ≤ 2500
Circuit-breaker [A]
Vacuum contactor [A] 200–400 –
Rated peak withstand current Ip2 [kA] ≤ 100 ≤ 80
Rated short-time current Ik2 [kA] ≤ 40 (3 s) ≤ 31.5 (3 s)
Rated frequency fr [Hz] 50/60
PIX 12–17–24 kV | Installation – Operation – Maintenance 19
2 Design and description
2.8 Technical data of electrical control and operating devices
The switchgear panels have been designed on principle so as to permit manu-al operation.
The drive mechanisms of the individual switching devices can be equipped,depending on the specific customer's model, with additional electrical controland operating devices. These are defined in the switchgear-specific circuit di-agram (see switchgear documentation).
Component fitting options:
● Motor-operated drive mechanismfor the earthing switch control element
● Blocking coilThe blocking coil prevents manual actuation of the earthing switch. If thesupply voltage has failed or is shut off, all blocking coils are in "blocked"position.
● Auxiliary switchesAuxiliary switches are always actuated directly by the truck or by theswitch shaft via an intermediate linkage. Their position always corre-sponds to that of the main contacts. The switching functions have beenset in the factory according to the circuit diagram.
● Micro-switchesare used depending on the customized panel models.
Fixtures in the switchgear panel
Overview of rated supply voltages
Direct voltage DC [V] 24 48 60 110 125 220
Alternating voltage AC [V] (110)/120 (220)/230
Power consumption
Device
Rated power consumption
DCapprox. [W]
AC 50/60 Hzapprox. [VA]
Blocking coil 12
Motor for earthing switch 150–180
Information about the power consumption of solenoids and the motor is available fromthe manufacturer. The supply voltage data is required to this effect.
Electrical control and operating devices of trucks are described in the appro-priate Technical Manuals (see "Reference documents" on page 6).
● Circuit-breaker HVX with Ur ≤ 24 kV, Ir ≤ 2500 Asee Technical Instruction AGS 531301-01
● Circuit-breaker HVX with Ur ≤ 17.5 kV, Ir > 2500 Asee Technical Instruction AGS 531461-01
● Disconnector truck UTX/Metering truck MTXsee Technical Instruction AGS 531361-01
● Vacuum contactor CVXsee Technical Instruction NTV 133
Truck
2 Design and description
20 PIX 12–17–24 kV | Installation – Operation – Maintenance
2.9 Utilization in line with the intended purpose
PIX series air-insulated medium-voltage switchgear units are designed exclu-sively for switching and distributing electrical power. They may only be used inthe scope of the specified standards and the switchgear-specific technicaldata. Any other utilization constitutes improper use and may result in dangersand damage.
The manufacturer shall not be held responsible for damage which occurs if
● instructions in this Technical Manual are not complied with,
● the switchgear is not operated according to its intended use (see above);
● the switchgear is assembled, connected or operated improperly;
● accessories or spare parts are used which have not been approved by themanufacturer;
● the switchgear is converted without the manufacturer’s approval, or if in-admissible parts are attached.
No liability is accepted for parts provided by customers, e.g. current transform-ers.
2.10 Disposal after the end of the useful life
A material and recycling data sheet can be provided on request for the dispos-al of series PIX switchgear at the end of its service life:
Disposal is performed as a service by the manufacturer’s Service Centerwhich to payment.
Disclaimer of liability
3 Packaging, transport, deliveryand storage
PIX 12–17–24 kV | Installation – Operation – Maintenance 21
3.1 Shipping units
● The conditions and types of transport have been stipulated in the contractdetails. The type of packaging depends on the type of transport and thestorage conditions.
● The panels are delivered individually and are fastened on transport aids.The standard accessories are included.
● In the case of panels with a width of 650, 750 and 800 mm, the truckscan be delivered within the panels. They are in "disconnected position",and secured in the switching device compartment using transport locks.With 1000 mm wide panels, the trucks are delivered in separate packag-ing.
● The panels are delivered in upright position.
Important:The weight of the entire transport unit is indicated on the packaging.
● If the panels are transported exclusively on a lorry, they are fastened bywooden bars at the front and rear and packed in PE film (Fig. 3.1).
● For sea transport, the units are packed in sealed aluminium foil with desic-cant and in a closed wooden case with tightly closed wooden base (alsofor container transport, Fig. 3.2).
● In case of air transport, the panels are packaged in wooden crates with aprotective PE film hood (dust protection) or in wooden crates, also withclosed wooden bases, however without protective hoods (dust protection,Fig. 3.2).
Packaging
Fig. 3.1Packed in PE protective film on a pallet
Fig. 3.2Packed in a wooden case
3.2 Transport
Warning!When transporting the switchgear, it must be ensured that the unitsdo not slip or tip (if necessary, nail down transport pallets to theloading surface).
Important:For transporting the trucks, comply with the transport specifications in the ap-propriate manuals.
For transport, the panels must be packaged completely. The entire length ofthe forks must be placed under the transport unit (Fig. 3.4).
3.3 Delivery
● Handle shipping units carefully when unloading and unpacking them.
● Shipping units must be checked upon receipt. Any damage which mayhave occurred in transit must be recorded and reported to the manufac-turer immediately.
● Check completeness of consignment based on the transport documents.The supplier must be notified in writing without delay about any devia-tions.
Transport using a forklift truck
Fig. 3.3Do not tip the transport units
Fig. 3.4Transport using a forklift truck
3 Packaging, transport, delivery and storage
22 PIX 12–17–24 kV | Installation – Operation – Maintenance
3.4 Storage
Warning!Sufficient stability and evenness of the supporting area (floor) mustbe ensured.
If the panels are not installed immediately after delivery, they can be stored un-der the following conditions:
● Panels may only be stored vertically; they must not be stacked.
● Storage only indoors!
● Panels and accessories must be packed in sealed aluminium film withdesiccant and in a wooden case (storage for max. two years after date ofpacking).
PIX 12–17–24 kV | Installation – Operation – Maintenance 23
– 5 ºC
+ 40 ºC
Fig. 3.5Schematic diagram of storage conditions for PIX switchgear panels
3 Packaging, transport, delivery and storage
4.1 Safety provisions
Warning!Before opening / removing doors / covers, isolate the compartmentin question, check for zero voltage and earth in accordance with thesafety provisions in EN 50110-1.
Warning!After removal of covers, operator safety in accordance with IEC62271-200 may be restricted if the appropriate part of theswitchgear unit has not been isolated from the power supply.
4.2 Access to the cable compartment
Warning!The cable compartment may only be opened if the earthing switchis ON (see Chapter 10.9.1).
The panels can be equipped with supplementary cylinder locks to lock the ca-ble compartment cover. To this effect, see also Chapter 10.4.4 "Interlocks viacylinder locks".
4.2.1 Removal of the cable compartment cover
1. Release the securing bolts of the cable compartment cover (Fig. 4.1, 1).
2. Lift and remove the cable compartment cover (2).
After terminating assembly work, place cable compartment cover onto the pan-el, lower it and fasten it again using the securing bolts.
Re-mounting the cablecompartment cover
4 Access to the main circuitcompartments
24 PIX 12–17–24 kV | Installation – Operation – Maintenance
1
2
L3L3L1L1
L2L2
Fig. 4.11 Release securing bolts of cable compartment cover2 Lift cable compartment cover and remove it in forward direction
4.2.2 Removing the truck carrier
The truck carrier can be removed as required, for example for maintenancework (Chapter 11) or for access to the busbar compartment (Chapter 4.4.1).
1. Remove truck from the panel (see Chapter 4.3).
2. Remove insulating walls (only in case of 17 and 24 kV panels):
– Release the 3 securing bolts (Fig. 4.2, 1) of the support (2).
– First remove support (2) and then the four insulating walls (3).
3. Dismantle auxiliary switch block for truck (4) and deposit carefully in thecable compartment.
4. If the panel features a voltage indicator: disconnect the plug-and-socketconnector of the unit (5).
5. Remove the securing bolts of the truck carrier (6).
6. First raise truck carrier on the front, then pull it out (7).
PIX 12–17–24 kV | Installation – Operation – Maintenance 25
4 Access to the main circuit compartments
4
2 3
6
L3
L1L2 7
1
5
8
Fig. 4.2Removing the truck carrier1 Securing bolts of the support2 Support (only for PIX 17 and 24)3 Insulating walls (only for PIX 17 and
24)4 Fastening the auxiliary switch block5 Plug-and-socket connector of volt-
age indicator
6 Securing bolts of truck carrier7 Raise truck carrier on the front and
pull it out8 Slide for earthing switch actuation
Re-install truck carrier and dismantled components by reversing the above or-der. When screwing the truck carrier down, make sure that the slide (Fig. 4.2,item 8) to open the insertion opening for the earthing switch operates smooth-ly. If necessary, release bolts and reposition the truck carrier.
4.3 Access to switching device compartment
Warning!The switching device compartment may only be opened if the truckis in disconnected position (see Chapter 10.7.2).
4.3.1 Opening and closing the front door
1. Insert double-bit key into the door opening and turn it to the left (Fig. 4.3,1); the door is unlocked.
2. Insert handle with the lever pointing down, and turn handle to the left (2);the front door is lifted.
3. To open the door, swing it to the left (3).
1. Close the door completely.
2. Turn the handle downwards; the door is lowered.
3. Pull door handle off and stow it in the tool tray of the trolley (see Chapter12.5).
4. Lock the door using a double-bit key.
Re-install truck carrier
Closing the front door
Opening the front door
26 PIX 12–17–24 kV | Installation – Operation – Maintenance
Fig. 4.3Opening the front door1 Insert double-bit key and unlock door. To this effect, turn the key to the left.2 Insert handle with the lever pointing down, and turn handle to the left.3 The door is opened and can be swung open to the left.
L3L3L1L1
L2L2
1
2
3
4 Access to the main circuit compartments
PIX 12–17–24 kV | Installation – Operation – Maintenance 27
4.3.2 Removing the transport locke of the truck
In the case of panels with a width of 650, 750 and 800 mm, the trucks can bedelivered within the panels and are secured by means of a transport lock (Fig.4.4).
1. Release the two bolts (Fig. 4.5, 1).
2. Release lock bolts M8x25 (2).
3. Remove transport lock (3).
4. Reinsert the two bolts (1).
Remove transport lock on the other side following the same procedure.
13
2
Fig. 4.4Transport lock of circuit-breaker truck
Fig. 4.51 Bolts2 Lock bolts3 Transport lock
4 Access to the main circuit compartments
4.3.3 Removing and connecting the low-voltage connector
Important:The low-voltage connector can only be removed or inserted while the truck isin disconnected position.
1. Pull interlocking slide of low-voltage connector forward (Fig. 4.6, 1) andremove the connector (2).
2. Stow low-voltage connector in storage tray above the truck (Fig. 4.7).
1. Take low-voltage connector from the storage tray above the truck (Fig.4.7).
2. Insert low-voltage connector into the truck and press interlocking slideforward.
Connecting the low-voltageconnector
Removing the low-voltageconnector
2
1
Fig. 4.61 Unlock low-voltage connector2 Remove low-voltage connector
Fig. 4.7Place low-voltage connector in trayabove the truck
4.3.4 Removing the truck from the panel
1. Adjust rails and unlocking bar of trolley to the correct track width of thetruck (see Chapter 12.5).
2. Turn lever to the left (Fig. 4.8, 1). The trolley is lifted on the front.
3. Approach trolley to the panel so that the lateral guides (Fig. 4.9, 2) areclose to the panel, and turn lever (1) back to the right. The trolley islocked on the panel (3).
4. Push unlocking bar (Fig. 4.10, 4) forward to its stop. The latching of thetruck in the panel is released.
5. Pull truck onto the trolley via the two handles (5) until it snaps in on thetrolley audibly.
6. Turn lever back to the left (6). The trolley is lifted on the front, and re-moved from the panel.
28 PIX 12–17–24 kV | Installation – Operation – Maintenance
4 Access to the main circuit compartments
1
2
3
3
Fig. 4.8Turning lever on trolley to the left
Fig. 4.9Locking transport trolley on panel
4
6
5
Fig. 4.10Pull circuit-breaker onto trolley
PIX 12–17–24 kV | Installation – Operation – Maintenance 29
4 Access to the main circuit compartments
7. Pull trolley with the truck away from the panel (7) and turn lever back tothe right to lower it (8).
8. Now the truck can be raised by means of a crane, and deposited. For fur-ther information, please refer to Chapter 5.3.2. Instructions regarding lift-ing and transporting trucks (HVX, UTX, MTX, CVX).
8
7
Fig. 4.11Pull trolley with truck away from the panel
4.3.5 Inserting the truck into the panel
Important:Trucks and panels can be given matching coding, optionally. This is to preventa truck from being racked completely into the panel if the rated data do notmatch.
1. Turn lever to the left (Fig. 4.12, 1). The trolley is lifted on the front.
2. Approach trolley to the panel via the handles (2) so that the lateral guides(3) are close to the panel, and turn lever back to the right (4). The trolleyis locked on the panel.
3. Press left-hand unlocking button (Fig. 4.13, 5) and slip truck briefly be-yond the ratchet lever. Subsequently, slide truck into the panel using thehandles (6), until it is latched in the panel.
4. Turn lever back to the left (7). The trolley is lifted on the front, and re-moved from the panel.
5. Pull trolley back from the panel and turn lever back to the right to lower it.
30 PIX 12–17–24 kV | Installation – Operation – Maintenance
4 Access to the main circuit compartments
3
4
2
1
5
6
7
Fig. 4.12Move trolley with circuit-breaker towards the panel until they are in contact, and lock.
Fig. 4.13Pushing the circuit-breaker into the panel.
4.4 Access to the busbar compartment
Warning!The busbar compartment may only be opened if the busbar is earth-ed (see Chapter 10.11).
4.4.1 Front access
Steps for assembly (Fig. 4.14):
1. Remove cable compartment cover (see Chapter 4.2).
2. Open front door (see Chapter 4.3.1).
3. Remove truck HVX, UTX etc. (see Chapter 4.3.4).
4. Remove truck carrier (see Chapter 4.2).
5. Unscrew pressure relief flap and take it out in forward direction.
6. Remove partition plate to busbar compartment and take it out in forwarddirection.
7. Insert temporary base plate to enable safe access to the cable compart-ment.
PIX 12–17–24 kV | Installation – Operation – Maintenance 31
6
3
1
4 7
5 8
2
Fig. 4.141 Remove cable compartment cover2 Open front door3 Remove truck (the example shows the circuit-breaker truck HVX)4 Remove truck carrier5 Unscrew pressure relief flap and take it out in forward direction6 Remove partition plate to busbar compartment and take it out in forward direction7 Insert temporary base plate to enable safe access to the cable compartment8 Busbar compartment9 Working position
4 Access to the main circuit compartments
9
1 2 43
Fig. 4.15Top access to the busbar compartment1 Temporary base plate2 Screw fastening3 Sheet metal cover4 Busbar compartment
4 Access to the main circuit compartments
32 PIX 12–17–24 kV | Installation – Operation – Maintenance
4.4.2 Top access
Warning!The top sides of the panels are not meant to be walked on. Personsmay fall through them, get injured or may damage the panel. Whenwork has to be performed on the panel top, temporarily position asolid base plate to step on.
Access to the busbars is also possible from the top via the panel top (Fig.4.15) provided the space available so permits (sufficient ceiling height is re-quired).
1. Cover top of panel using a temporary base plate (1).
2. Release the screw fastening of the upper busbar compartment cover (2)and remove sheet metal cover (3). Now, the busbar compartment (4) isaccessible.
5.1 Safety provisions
The switchgear panels may only be installed and assembled by the manufac-turer’s staff or by persons who have been certified for this work.
PIX panels are delivered with the circuit-breaker switched OFF, the circuit-breaker energy storing device released and the earthing switch OFF.
Warning!Risk of injuries!During assembly, installation and connection, the energy storing de-vices must not be charged.
Warning!Risk of accidentsWatch out for floor openings in the switchgear room.
Warning!The top sides of the panels are not meant to be walked on. Personsmay fall through them, get injured or may damage the panel. Whenwork has to be performed on the panel top - e.g. assembly of de-flectors, fans or pressure relief ducts - temporarily position a solidbase plate to step on.
Warning!The safety provisions of Chapter 1 must be observed.
5.2 Important information for assembly
● Condensation, dirt and dust during assembly should be avoided on all ac-counts, in order to prevent damage to the panels.
● For assembly, observe the assembly drawings supplied with the equip-ment. The drawing numbers are specified in this manual in the descriptionof the assembly work.
● For all screw fastenings, comply with the tightening torques specified inChapter 12.3.
Assembly of the switchgear-specific additional equipment (e.g. deflectors,pressure relief ducts, fans, busbar attachments for voltage transformers orearthing switches etc.) is described in the manual regarding PIX AdditionalEquipment (No. AMTNoT 077-02).
5 Assembly
PIX 12–17–24 kV | Installation – Operation – Maintenance 33
5.3 Transport of the panels / trucks on the construction site
5.3.1 Panels
Warning!Make sure the rope or the chain being used is strong enough tobear the weight of the panel (see Chapter 2.2). Comply with the rel-evant provisions for hoisting equipment.
Warning!On lowering the panels, make sure that the supporting platform issufficiently stable and even.
Warning!Risk of accidents. Pay attention to floor openings!
1. Attach the crane straps in the four jack rings on top of the panel (Fig.5.1). Make sure to leave a minimum height of 1 m (Fig. 5.2).
2. Release the front and rear panel screw fastening from the transport pack-aging. To this effect, remove the cable compartment cover, see Chapter4.2.1.
3. Carefully lift the panel and deposit it at the intended location.
1. Push panel onto three cylindri-cal rollers (minimum diameter30 mm) (Fig. 5.3).
2. Thus, move the panel until itreaches its final location.
Transport on the floor
Transport using a crane
≥ 1m
Fig. 5.1Jack rings on top of the panel
Fig. 5.2Observe the minimum height
Fig. 5.3Transport of the panel on the floor
5 Assembly
34 PIX 12–17–24 kV | Installation – Operation – Maintenance
5.3.2 Trucks
The trucks can be transported by means of the optional handling crane (Fig.5.4). Item no. AGSC73258-01.
Trucks must always be deposited on external wooden beams (Fig. 5.5).
For further details, please refer to the instruction manuals for the trucks inquestion.
Fig. 5.4Transport of truck using the handlingcrane
Fig. 5.5Trucks must always be deposited on ex-ternal wooden beams
PIX 12–17–24 kV | Installation – Operation – Maintenance 35
5.4 Requirements regarding the switchgear room
Before installing the switchgear panels, make sure that the switchgear room ischecked according to the switchgear documentation (Fig. 5.6):
● Observe the minimum distance between the switchgear and the wall ofthe building.
● The load-bearing capacity of the fastening points must correspond to theweight of the switchgear (perform a stress analysis of the floor).
● Check base frame (if used) for dimensions and positional tolerances.
● Check position of floor openings for high-voltage and low-voltage cables.
Before the panel is positioned at its site of installation, check that the fasteningpoints are level. Unevenness must not exceed ± 2 mm/meter and 6 mm differ-ence in height over the entire locating surface.
Important:Observe switchgear-specific space assignment plan.
5 Assembly
Fig. 5.6Design example: The switchgear is located in the left-hand corner of the room1 Bore-hole for fastening of panel2 Switchgear side wall3 Openings for routing external low-voltage cables4 Openings for routing high-voltage cables5 Reserved (100 x 100 mm) for the connection of the earth bus of the switchgear to
the building's earth cable
5 Assembly
36 PIX 12–17–24 kV | Installation – Operation – Maintenance
100
1
122
4
5
3
630
(PIX
12)
25
730
(PIX
17/2
4)
100
19,5
29,5
4 x Ø 12,5
35
35
650/800/1000
35
1215
440
423
(473
)
114
40
1405
(160
5)
143
200
1
2
Fig. 5.7Dimensions (example: PIX 12 panels)1 Opening for routing high-voltage cables2 Opening for routing external low-voltage cables
Ground plan of a PIXswitchgear within a switchgearroom
Ground plan of the panels
5 Assembly
PIX 12–17–24 kV | Installation – Operation – Maintenance 37
5.5 Aligning and fastening panels
Important:The position of the first panel is decisive for placement of the subsequentpanels, thus it is essential that measuring is effected with the utmost preci-sion!
1. Position first panel on the foundations in accordance with the switchgear-specific space assignment plan.
2. Remove cable compartment cover (see Chapter 4.2).
3. Align panel. Check the panel front for correct horizontal and vertical posi-tion. If applicable, lift the panel and place shims in the direct vicinity of thefastening points, until the horizontal position has been reached. Assemblydrawing: SEM102173-01
4. Screw-fasten panel to the two fastening points on the front end and atleast one fixation pont on the rear end (Fig. 5.8); hex. bolt M 10 x 30 +dowel pin.
Important:Panel fastening with seismic qualification or vibration-proof characteristics canbe supplied on request. For further details, please, contact the manufacturer..
Fastening on concrete foundations
≥ 1000 mm≥ 100 mm
ScrewsM10x30+ Lock washer+ Washer+ Dowel pin Sectional
view
Top view
Screws M10x30Lock washer
Washer
Dowel pin
0, 1 or 2 spacers
Spacers
Fig. 5.8Panel fastening on concrete foundations
38 PIX 12–17–24 kV | Installation – Operation – Maintenance
5.6 Screw-fastening the panels to one another
Assembly drawing: SEM102056-01
1. Screw-fastening panel fronts to one another using 6 fastening points (Fig.5.9).
2. Fasten panels to one another at the top on the rear side using a connect-ing link. To this effect, use the screws provided on the panel.
12
3
4
Fig. 5.9Screw-fastening the panels to one another1 Screw M82 Spring washer3 Hex. nut M8 with lock washer4 Connecting link
5 Assembly
5.7 Installation of the busbar bushings
Panels can be equipped, depending on the customer specifications, with re-taining plates (Fig. 5.11 and 5.12) or busbar section segregations (Fig. 5.10)for the busbar.
The retaining plates/busbar section segregations are pre-mounted at the fac-tory. The bushings (2) are included in the accessories.
Slip bushing from the outside through the bore-hole and mount retaining ring(3) from the inside.
PIX 12–17–24 kV | Installation – Operation – Maintenance 39
5 Assembly
1
2
3
Fig. 5.101 Busbar section segregation (option)2 Bushing3 Retaining ring
Fig. 5.12Busbar retaining plate in bus section couplers
1
2
3
Fig. 5.111 Busbar retaining plate2 Bushing3 Retaining ring
40 PIX 12–17–24 kV | Installation – Operation – Maintenance
5 Assembly
5.8 Busbar assembly
5.8.1 Arrangement of busbars in branch-circuit panels
5.8.2 Arrangement of the lower busbars in bus section couplers
Number of busbars per phase
1 2 3
Number of feeder barsper phase
2 –
3 – –
Number of busbars per phase
1 2 3
Number of feeder barsper phase
1
21600 A(80x10)
1250 A(60x10)
1250 A(60x10)
1600 A(80x10)
3 –
5.8.3 Mounting busbars
Access to the busbar compartment: see Chapter 4.4
Important:Comply with the specifications on treatment of contact surfaces and the tight-ening torques for busbar screw fastening in the Annex.
1. Clean all contact areas of the busbars and feeder bars in the switchgearpanels and coat them with lubricant KL (see Chapter 12.2).
2. Screw-fasten busbars to the feeder bars as shown in Fig. 5.14 using fourbolts (PIX 12, Fig. 5.15) or four bolts and an electrode (PIX 17/24, Fig.5.16). Observe location of busbars and feeder bars (Chap. 5.8.1).
PIX 12–17–24 kV | Installation – Operation – Maintenance 41
5 Assembly
1 2 3
1
2
2
3
1
2
3
4
1 2
3 4
Fig. 5.13Assembly of busbar in a left-hand endpanel1 Busbar2 Feeder bar3 Busbar screw fastening with elec-
trode4 Intermediate layer
Fig. 5.16Busbar screw fastening PIX 17/241 Bolt M 122 Lock ring3 Electrode4 Electrode with inner thread
Fig. 5.15Busbar screw fastening PIX 121 Bolt M 122 Spring washers3 Nut M 12
Fig. 5.14Busbar fastening in a center panel (ex-ample shown: PIX 17/24)1 Busbar2 Feeder bar3 Busbar screw fastening with elec-
trode
Fig. 5.171 In busbar end panels, the phases L1 and L3 must be screw-fastened to electrodes
in accordance with PIX 24 (Fig. 5.16)2 In the bus section coupler, all phases L1/L2/L3 in the lower busbar must be screw-
fastened to electrodes in accordance with PIX 24 (Fig. 5.16)
1
22
1 1 1
Busbar screw fastening forPIX 12/17/24
Take differing busbar screwfastening in PIX-12 busbar endpanels into consideration:
42 PIX 12–17–24 kV | Installation – Operation – Maintenance
5 Assembly
1
24
4
5
3
Fig. 5.18Mounting the earth bar1 Connecting bar2 Cutout in panel-supporting structure3 Adjacent panel4 Earthing bars in the panels5 Screw fastening of connecting bar to earthing bars
5.9 Assembly of the earth bus
Earth bars are screw-fastened between the switchgear panels using connect-ing bars (Fig. 5.18).
Important:Comply with the specifications on treatment of contact surfaces and the tight-ening torques for screw fastenings in the Annex.
1. Clean all contact areas of the connecting bar and the appropriate earthbar in the switchgear panels and coat them with lubricant KL (see Chap-ter 12.2).
2. Slip the connecting bar (1) into the adjacent panel (3) through the cutoutin the panel-supporting structure (2).
3. Screw-fasten (5) connecting bar on both sides to the earth bar (4) inquestion.
4. Connect earth bus (Fig. 5.19) to the earthing system of the switchgearbuilding (connecting lines and screw accessories are not included in thescope of supplies).
Important:Observe the specific standards referring to earthing systems which apply inyour country.
Fig. 5.19Connecting point of switchgear earthbus to building earth
6.1 Overview of cable connection system
Cable connection for Ø 13:
● Cable cross section≤ 400 mm2
Cable connection for 4 bore-holes ofØ 9:
● Cable cross section500 or 630 mm2
Cable connection variants:
6 High-voltage connection
PIX 12–17–24 kV | Installation – Operation – Maintenance 43
Fig. 6.1Connecting bar 80 x 10 with dimensionsfor the fastening of cable sealing end
40
25 30
80
Ø 9
Ø 13
30
3015
Cable terminalper phase
Representation of a connection phase
Front view Side view
max. 2
max. 4
max. 6
max. 8
Overview of cable connectionvariants
● Metal-clad rear cable compartment for cable connections behind the pan-el (see Chapter 6.4)
● Conductor bar terminal
Please clarify technical details and design specifications with the manufacturer,as required.
Further cable connection variantsoptionally available:
6 High-voltage connection
44 PIX 12–17–24 kV | Installation – Operation – Maintenance
6.2 Adjusting the cable connection height
The cable connection height can be increased by approx. 50 mm as required.
1. Remove the base plates and the lateral supports. Measure and drill newfastening holes in the supports.
2. Fasten support in the panel to the new fastening holes.
L
50m
m
L1
L2m
ax.
1
2
Fig. 6.2Cable connection height in panel1 Cable connection2 Adjustable lateral support
Connection clearances [mm]
PIX 12 PIX 17 PIX 24
L 430 460 555
L1 390 420 515
L2 440 470 565
PIX 12–17–24 kV | Installation – Operation – Maintenance 45
6 High-voltage connection
6.3 Connection of high-voltage cables
Access to cable compartment: See Chapter 4.2.
1. Remove cable clips and rubber sleeves (Fig. 6.3).
2. If necessary, remove the base plates.
3. Route the individual cables outwards through the cable compartment ofthe panel to enable assembly of the cable ends.
4. Cut the rubber sleeves to fit the cable diameter, and push them onto thecables (Fig. 6.4).
5. Strip cable ends and assemble the sealing end as specified by the cablemanufacturer.
Warning!Do not use aluminium cable lugs for the cable connection. Inadmis-sible matching of materials.
Mount sealing end
Preparation of cable compartment
1
2
34
Fig. 6.31 Release fastening of cable clips2 Remove cable clips3 Remove rubber sleeves4 Remove base plate as required
Fig. 6.4Cut rubber sleeves to size and slip themonto the cables
Fig. 6.5Mount cable lug
6 High-voltage connection
Important:● Unless otherwise specified by the cable manufacturer: Comply with the
specified tightening torques and pre-coat contact areas (see Chapter12.2).
● Observe the phase assignment of the switchgear panel.
6. Fasten the individual cables to the appropriate connection surfaces (Fig.6.6 to 6.8). In case of two cables per phase: Connect the two cables tothe first connection (Fig. 6.7).
7. Re-mount the base plates.
8. Fasten high-voltage cable to the base plates using clamping assemblies(Fig. 6.9 and 6.10).
9. Screw-fasten the earthing screens (2) of the cables to the earthing bar(3) of the panel.
1 2 3
Fig. 6.61 High-voltage cable2 Earthing screen3 Earthing bar
46 PIX 12–17–24 kV | Installation – Operation – Maintenance
Fig. 6.7Connection using 1 - 2 cables
Fig. 6.8Connection using 8 cables
Fig. 6.10Clamping assembly for cables with a di-ameter of < 40 mm
Fig. 6.9Clamping assembly for cables with a di-ameter of ≥ 40 mm
6.4 High-voltage connection to rear of panel (optional)
Panels can be extended optionally by a rear cable compartment (Fig. 6.11).
This rear connection compartment permits connection to high voltage behindthe panel. Normally, the high-voltage cables or external conductor bars arerouted in from above. The variants of the cable connection options (dependingon the rated nominal current) correspond to the explanations in Chapter 6.1.
The preassembled sheet metal housing of the rear cable compartment isscrew-fastened to the panel on the construction site.
The current transformers are located in the rear cable compartment. The frontearth bar has a connection to the rear into the rear cable compartment, wherea separate earth bus for earth connectors is located.
Important:Please clarify further technical details and design specifications with the man-ufacturer, as required.
PIX 12–17–24 kV | Installation – Operation – Maintenance 47
Fig. 6.11High-voltage connection on rear side of switchgear panel (optional)
6 High-voltage connection
7.1 Open low-voltage compartment door
1. Insert double-bit key into the lock of the low-voltage compartment andturn it to the left by 90°.
2. Open door to the left.
3. The door can be secured optionally in open position using a lock plate(Fig. 7.1, 1).
7.2 Attachment of the low-voltage compartment
The low-voltage compartments are delivered, depending on the order, either inpre-assembled condition or separately as accessories.
1. Remove transport protection covers. Assign the low-voltage compartmentto the appropriate panel.
2. Position low-voltage compartment carefully on top of the panel, makingsure that the top internal connection cables of the panel are not damaged.
3. Align low-voltage compartment and screw-fasten it to the panel. Assem-bly drawing: AGS C73 180-01
4. Screw-fasten the low-voltage compartments to each other at the sides.
5. Connect the panel's internal terminals for control and measuring cablesaccording to the connector identification and the circuit diagram to theterminal strips in the low-voltage compartment.
7.3 Connection of the ring circuits in the low-voltage compartment
1. Route the ring circuits for the intra-panel wiring through the lateral open-ings of the low-voltage compartment (Fig. 7.1, 2).
2. The ring circuits have been designed with connectors. Connect ring cir-cuits in accordance with the connector identification (or the circuit dia-gram) to the appropriate terminal strips in the low-voltage compartment.
48 PIX 12–17–24 kV | Installation – Operation – Maintenance
7 Low-voltage connection
Fig. 7.11 Lock plate (optional)2 Ring circuits
1
2
7.4 Connecting external cables in the switchgear panel
7.4.1 Routing the external cables through the panel's internal cable duct
Customized low-voltage cables forcontrol and measurement can berouted to the low-voltage compart-ment inside each panel on the right-hand side (Fig. 7.2). The cable ductfor the external cables is only locatedon the left side in the bus sectioncoupler.
1. Remove the metal cable ductcovers on the right inside of thepanel (3).
2. Break sheet-metal cutouts inthe panel base (1) out as re-quired.
3. Route external cables (2) fromthe cable basement through thecutout into the panel's internalcable duct and to the low-volt-age compartment. Fasten ca-bles to the panel using cableclamps (4).
4. Connect external cables to theterminal strip in the low-voltagecompartment according to thecircuit diagram.
5. Reposition the cable duct cov-ers (3).
7.4.2 Routing the external cables through an additional cable duct (optional)
Customized low-voltage cables forcontrol and measurement can berouted via an optional, separate ca-ble duct above the low-voltage com-partment (Fig. 7.3).
The cable duct is mounted on site,and is included in the accessories.
1. Mount the cable duct in accor-dance with the assembly draw-ing AMT 000 376-01.
2. Route external cables throughthe cable duct (2) to the low-voltage compartment (3). Con-nect external cables to the ter-minal strips in the low-voltagecompartment according to thecircuit diagram.
3. Screw-fasten cover of cableduct (1).
PIX 12–17–24 kV | Installation – Operation – Maintenance 49
Fig. 7.21 Sheet metal cutouts in the panel
base2 External cables3 Cable duct covers4 Cable clamp
Fig. 7.3Top cable duct1 Cable duct cover2 Cable duct3 Low-voltage compartment
7 Low-voltage connection
1
2
3
3
1
2
24
2
3
8.1 Final steps
Warning!The high-voltage power supply must not be connected. All activeparts must be earthed.
Important:Whenever you detect anomalies, faults or malfunctions, do not commissionthe switchgear, but inform the manufacturer.
● Clean the switchgear, removing contamination resulting from assemblywork.
● Remove all the attached information tags, cards, brochures and instruc-tions no longer needed.
● Check the tightening torques of all screw fastenings and connections es-tablished on the site of installation:
– high-voltage connection
– earth conductor
– busbar connections
– panel screw fastenings
– low-voltage wiring
– special attachments
The panels are powder-coated. Minor damage to the paint can be repaired us-ing commercially available paint (standard colour RAL 7044 or customer spe-cific colour).
● Removed partition and cover plates in the busbar and switching devicecompartment (see Chapter 4.4.1).
● Cable duct covers of the external control and measurement cables (seeChapter 7.4.1)
● Cable compartment cover (see Chapter 4.2).
● Remove temporary base from the panel top, if such a base has been used(see Chapter 4.4.2).
● Check the switchgear for damage which might be due to transport or as-sembly work.
● Compare data on nameplate to the required ratings.
Re-mount the covers:
Clean and check assembly
Inspection
Damaged paint
50 PIX 12–17–24 kV | Installation – Operation – Maintenance
8 Commissioning
Insert trucks in the panels depending on the panel configuration (see Chapter4.3.5):
● Disconnector truck UTX
● Vacuum contactor CVX
● Metering truck MTX
● Circuit-breaker truck HVX
The HVX circuit-breaker is delivered without transport securing device in thedrive mechanism as of October 2008. The circuit-breaker can be commissio-ned immediately.
Important:HVX circuit-breakers with a formerdate of manufacture (up to approx.October 2008) are equipped with atransport securing device in thedrive mechanism. This securing ismarked on the front cover (Fig. 8.1)with an label. In this case, do notoperate the circuit-breaker. Removethe transport securing device beforecommissioning (see Assembly andOperating Instructions HVX,AGS 531 301-01 andAGS 531 461-01).
See Chapter 4.3.1.
8.2 Checking switching functions and interlocks
Warning!The high-voltage power supply must not be connected. All activeparts must be earthed.
Important:● For switching operations, comply with Chapter 10 (Operation).
● In case supply voltage is not available:
– are blocking coils (optional; lock circuit-breaker button and/or truck indisconnected position) in locked position, thus blocking manualswitching operations;
– is there a dropped-out undervoltage release in the circuit-breaker (op-tional).
● The energy-storing device of the circuit-breaker drive is charged au-tonomously as soon as the supply voltage is applied.
1. Apply supply voltage.
2. Perform several manual test operations with each switching device.
3. Check switch position indicators.
4. Check electrical functions of control and operating devices.
– Closing and opening releases for circuit-breaker
– Optional motor-operated drives for the truck and the earthing switch
5. Check switch position indicators and interlocks (see Chapter 10).
Close front doors
Racking-in the trucks
PIX 12–17–24 kV | Installation – Operation – Maintenance 51
8 Commissioning
Fig. 8.1Label on the front cover of the circuit-breaker, only if delivered with transportsecuring device
8.3 Power frequency test for busbar (optional)
Warning!Comply with the safety provisions in Chapter 1.
A test unit and a test adapter (not included in scope of supplies) are requiredfor the power frequency test.
1. All panels must be isolated from the power supply and earthed (Fig. 8.2).
2. Busbar:Disconnect voltage transformer (MTX) and surge arrester. Earth voltagedetection systems.
3. Incoming feeder panel for voltage test:Remove cable compartment cover and disconnect voltage transformerand surge arrester. Earth voltage detection systems.
Important:Make sure that no high-voltage cables are connected.Observe the assembly and operating instructions for the test unit and the testadapter.
4. Perform the power frequency test of the busbar on the feeder panel:
– Connect test unit to the test cable.
– Switch the earthing switch OFF.
– Move circuit-breaker truck HVX into service position and switch cir-cuit-breaker ON.
– Perform the power frequency test successively for all three phases(L1, L2, L3) in accordance with the specifications of the test unit man-ufacturer. Make sure to earth the adjacent phases.
Important:Observe admissible test values for the switchgear and the admissible test val-ues for power-frequency tests after installation of the switchgear in accor-dance with IEC 62271-200.
5. – Switch circuit-breaker OFF and put circuit-breaker truckinto disconnected position; switch earthing switch ON.
– Remove test unit and test cables.
– Reconnect disconnected voltage transformers and surge arresters.
.
After the power frequency test
Performing the power frequencytests
Preparation
52 PIX 12–17–24 kV | Installation – Operation – Maintenance
Fig. 8.2Switch position during the power frequency test (example: five panels)1 Feeder panels2 Incoming feeder panel for test voltage3 Busbar4 Test unit (e g. high-voltage source, test transformer)5 Test cable
8 Commissioning
45
1
3
2
8.4 Cable test after assembly
Warning!Comply with the safety provisions in Chapter 1.
During the cable test, the busbar can be operated at rated voltage (see name-plate). For qualification of the current transformers for cable tests, enquire atthe appropriate manufacturer's.
A test unit and a test adapter (not included in scope of supplies) are requiredfor cable testing.
Important:Observe the assembly instructions for the test adapters and the operating andinspection instructions for the test unit.
1. Isolate feeder cable of the panel which is to be tested.
2. Isolate feeder cable in remote station.
3. Earth feeder cable of the panel which is to be tested.
4. Remove cable compartment cover (see Chapter 4.2).
5. Disconnect voltage transformer and surge arrester; earth voltage detec-tion systems.
6. Connect the test adapter to a free cable connection in the panel and onthe test unit. To this effect, observe the specifications of the test unit'smanufacturer.
Important:Make sure that the metallic components of the test adapter are at a sufficientdistance from the earthed switchgear components (e.g. housing).
7. Set switchgear panel to test position:
Circuit-breaker: OFF
Truck: in disconnected position
Earthing switch: OFF
8. Perform cable test according to the cable manufacturer's specifications.When doing so, do not exceed the admissible limits (see Table).
9. Earth feeder cable again.
10. Remove test set.
11. Reconnect voltage transformer, surge arrester and voltage detection sys-tems or de-earth them.
12. Reposition cable compartment cover.
Once the cable test has been completed:
Performing the cable test
Preparation
Admissible limits for the cable test in panels
PIX 12–17–24 kV | Installation – Operation – Maintenance 53
8 Commissioning
DC test voltage [kV] max. 15 min.
PIX 12 34
PIX 17 42
PIX 24 67
Admissible limits for the switchgear in case of cable tests with a testing frequency of0.1 Hz available on request from the manufacturer’s.
9 Voltage indicators
54 PIX 12–17–24 kV | Installation – Operation – Maintenance
9.1 Voltage Detection Systems (VDS)
Important:Refer to the operating manual of the voltage detection system concerned.
The operating voltage or the zero voltage state of the feeders is detected via aseparate voltage detection system according to IEC 61243-5. Socket-con-tacts for the indicator units are located on the panel front (Fig. 9.2). Capacitivevoltage indicators of all the approved manufacturers can be used (Fig. 9.1).
Important:All three phases L1, L2 and L3 must always be checked together.
Close non-used socket-contacts using caps.
IVIS (Fig. 9.3) is an integrated volt-age detection system with displayunit used to determine zero voltageaccording to IEC 61243-5.
The IVIS system has been designedfor maximum operating reliability. Itdoes not require supply from an ex-ternal source. It features climate-proof encapsulated electronics andis maintenance-free, due to perma-nent monitoring of the indicationthresholds.
Flash arrow symbols on the indicators display the operating voltage still exist-ing within the defined response thresholds (Fig. 9.3). The IVIS system doesnot require the electrical repeat tests common for voltage detection systems.
For a description of all functions and messages of the IVIS system, please re-fer to the separate Operating Manual IVIS (No. AGS 531757-01).
Integrated Voltage DetectionSystem IVIS
Pluggable voltage detection system
Fig. 9.1Voltage indicator(Type HR-ST, Horstmann GmbH)
Fig. 9.3Integrated Voltage Detection SystemIVIS
Fig. 9.2Socket-contacts for HR system on thepanel front
PIX 12–17–24 kV | Installation – Operation – Maintenance 55
9.2 Voltage Present Indicating System VPIS
VPIS (Abb. 9.4) is a capacitive volt-age indicator in accordance with IEC61958. It is exclusively used to dis-play the specified operating voltage.
In operation, each of the 3 phasesL1, L2 and L3 (3) is displayed by itsown flashing indicator lamp (1).
For each phase, a connector point(2) is available below each indicatorlamp for connection of the phasecomparator. Only approved phasecomparators may be used for thisVPIS system (see Chapter 9.3).
Warning!These devices cannot be used to verify zero voltage. Voltage indica-tors in accordance with IEC 61243-5 must be used to determinezero voltage. Thus, before opening the switchgear or before per-forming work on live components, these areas must always beearthed by means of a make-proof earthing switch.
Fig. 9.4Voltage indicator VPIS1 Indicator lamps2 Connection points3 Phases
L1 L2 L3
IEC 61958 10-24kV
1
2
3
9 Voltage indicators
56 PIX 12–17–24 kV | Installation – Operation – Maintenance
This phase comparator may only be used for the VIPS system in Chapter 9.2.
1. Check the device before each operation. Connect the two plugs of thephase comparator to the two connection points of a VPIS device (Fig.9.7).The lamp must light up: The phase comparator is working properly.
2. Checking phase coincidence of two panels: Connect the plugs of thephase comparator to the same phase connection points of two differentVPIS devices (panels) (Fig. 9.8). The indicator must not light up. If thephases do not coincide, check the cable connection and, if necessary, ex-change.
3. After each operation, check the device once more (see item 1).
Phase comparator for VPIS system(see Chapter 9.2)
L1 L2 L3
IEC 61958 10-24kV
L1 L3L1 L2 L3
IEC 61958 10-24kV
L1 L2 L3
IEC 61958 10-24kV
L1L1
Fig. 9.7No phase coincidence:indicator lights up
Fig. 9.8Phase coincidence:indicator does not light up
9 Voltage indicators
Rated voltage Ur [kV] VPIS item number
5–7.2 AMT150384-01
10–24 AMT150384-02
9.3 Phase comparators
Phase comparators are optionally available and not included in the scope ofsupplies.
Make sure to check phase coincidence before connecting different supplylines for the first time.
If IVIS is used, phase comparison can be performed by means of the phasecomparator MS 100 (Fig. 9.5).
Phase comparators for VDSsystems (see Chapter 9.1)
Fig. 9.6Phase comparator for HR system(Type ORION 3.0, Horstmann GmbH)
Fig. 9.5Phase comparator MS 100
PIX 12–17–24 kV | Installation – Operation – Maintenance 57
10 Operation
10.1 Operator interfaces of panels
L3L3L1L1
L2L2
345
1
2
6
789
13
12
14
15
1011
Fig. 10.1Operator interface of PIX panels (shown in conjunction with the circuit-breaker HVX)1 Lock to open and close the door of the low-voltage compartment2 Protection and control device3 Circuit-breaker ON4 Circuit-breaker OFF5 Insertion opening for handle to open and close the front door6 Inspection glass for indications and position of the circuit-breaker7 Knob for releasing the opening, for manual charging of the circuit-breaker's energy
storing device8 Opening for manual charging of the circuit-breaker's energy storing device9 Lock permitting locking and unlocking of the front door10 Knob for releasing the opening for racking the truck in/out manually11 Opening for racking the truck in/out manually12 Earthing switch operating element13 Voltage indicator14 Position indicator of earthing switch15 Securing bolts of the cable compartment cover
10.2 Operation accessories
Important:These accessories are supplied together with the panel. The panel may onlybe operated by means of these accessories.
58 PIX 12–17–24 kV | Installation – Operation – Maintenance
DesignationTo be usedfor:
Rated valueConnectordesign
Item no. Illustration
Operating leverfor earthingswitch
Cable feeder
Short circuitcurrent≤ 31.5 kA
squareAMT000223-08(motorized)
square AMT000223-09
Short circuitcurrent 40 kA
hexagonal AMT000223-10
Busbar
Short circuitcurrent≤ 31.5 kA
square AMT000223-05
Short circuitcurrent 40 kA
hexagonal AMT000223-07
Crank for truck
TruckHVX/UTX/MTX
Rated currentIr < 2500 A
hexagonal
AGSH31601-01(manual drive)
AGSH31674-01(motor drive)
TruckHVX/UTX
Rated currentIr ≥ 2500 A
square
AGSH32532-01(manual drive)
AGSH31674-02(motor drive)
10 Operation
Designation Item no. Illustration
Handle for opening and closing the front door SEM101120-01
Double-bit key for the front door SEM101137-01
Double-bit key for the low-voltage compartment SEM101137-02
Crank to charge the circuit-breaker's energy-storing device AGS H30498-01
Operating rod to switch the circuit-breaker on and off AGS H35446-01
PIX 12–17–24 kV | Installation – Operation – Maintenance 59
10.3 Trucks for PIX panels
1
2
34
5
67891011
12
2
1
3
4
56
7
8
91011121314
15
1
2
5
6789103
4
Fig. 10.2HVX circuit-breaker≤ 24 kV/≤ 2500 A1 Moving contacts2 Pole casing with vacuum interrupter
chamber3 Truck rollers4 Opening for racking the truck in/out
manually5 Operations counter6 Insertion opening for manual charg-
ing of the energy storing device7 Indicator, energy-storing device
(charged/released)8 Indicator, circuit-breaker ON/OFF9 Handles for racking the circuit-break-
er in/out10 Circuit-breaker OFF11 Circuit-breaker ON12 Sockets for low-voltage connector
Fig. 10.3HVX circuit-breaker≤ 17.5 kV/> 2500 A1 Pole partitions2 Moving contacts3 Vacuum interrupter chambers4 Press rod (transmission of ON/OFF
switching movement)5 Shutter actuation6 Truck rollers7 Opening for racking the truck in/out
manually8 Operations counter9 Insertion opening for manual charg-
ing of the energy storing device10 Indicator, energy-storing device
(charged/released)11 Indicator, circuit-breaker ON/OFF12 Handles for racking the circuit-break-
er in/out13 Circuit-breaker OFF14 Circuit-breaker ON15 Sockets for low-voltage connector
Fig. 10.4Vakuumschütz CVX1 H.V.H.R.C. fuses2 Moving contacts3 Vacuum interrupter chambers with
magnetic drive4 Truck rollers5 Opening for racking the truck in/out
manually6 Operations counter7 Indicator, vacuum contactor ON/OFF8 Handles for racking out/in9 Fuse status indication10 Low-voltage connector
10 Operation
60 PIX 12–17–24 kV | Installation – Operation – Maintenance
1
23
4
5
1
23
4
5
1
2
3
45
6
7
Fig. 10.5Disconnector truck UTX 12 kV1 Moving contacts2 Truck rollers3 Opening for racking the truck in/out
manually4 Handles for racking out/in5 Sockets for low-voltage connector
Fig. 10.6Disconnector truck UTX 17.5/24 kV withpole casing1 Moving contacts2 Truck rollers3 Opening for racking the truck in/out
manually4 Handles for racking out/in5 Sockets for low-voltage connector
Fig. 10.7Metering truck MTX1 Moving contacts2 High-voltage fuse for voltage trans-
former3 Voltage transformer4 Truck rollers5 Opening for racking the truck in/out
manually6 Handles for racking out/in7 Sockets for low-voltage connector
10 Operation
10.4 Interlocks
PIX 12–17–24 kV | Installation – Operation – Maintenance 61
Interlock Function of interlock Method of operation of interlock
Between truck and low-voltageconnector
The truck cannot be actuated unless thelow-voltage connector is inserted
The opening for the moving crank han-dle is locked.
Between truck and earthingswitch
The truck cannot be racked in if the earthingswitch is ON.
The moving crank handle is uncoupledautomatically.
The earthing switch can no longer beswitched on if the truck has left its discon-nected position.
The rotary movement of the earthingswitch lever is blocked. Do not applyforce!
Between the circuit-breakerand the truck
Circuit-breaker cannot be racked in or outwhile it is switched on
The opening for the moving crank han-dle is locked
Circuit-breaker cannot be switched on un-less- it is completely in its disconnected orservice position and- the operating crank for the rack-in mecha-nism has been removed
The circuit-breaker cannot be switchedon or off
Between the cable compart-ment cover and the earthingswitch (optional)
The cable compartment cover can only beremoved if the earthing switch is ON.
The cable compartment cover is lockedmechanically by means of a sheet metalplate.
Between the truck and thefront door (optional)
The front door can only be opened if thetruck is in its disconnected position.
The front door cannot be lifted via theopening handle unless the truck is indisconnected position.
If the front door is opened, the truck cannotbe moved into service position.
The crank of the truck cannot be insert-ed if the front door is open.
PIX panels have mechanical basic interlocks which help avoid operating errors.
You must be familiar with these interlocks before operating panels.
10.4.1 Mechanical interlocks
10.4.2 Electromagnetic interlocks (optional)
Electromagnetic blocking coils can be used for inter-panel as well as intra-panel interlocks:
● The circuit-breaker's ON and OFF pushbuttons are blocked.
● Manual actuation of the disconnector truck is blocked.
● Manual actuation of the earthing switch is blocked.
Warning!Complete switchgear interlocking can only be ensured with com-plete locking devices to avoid malfunctions.
Important:– In case of failure of the supply voltage, all electrical interlocks are in their
"locked" position. Measure: Re-establish supply voltage.
– Please note the purchase contract and the switchgear-specific circuit dia-gram as regards the design of the interlocking systematics.
– If no blocking coils are being used for the locking devices, a mechanicallock-out with cylinder or U lock must be provided.
10 Operation
62 PIX 12–17–24 kV | Installation – Operation – Maintenance
10.4.3 Mechanical lock-outs due to padlocks (not included in scope of supplies)
The boreholes are provided for padlock yokes of Ø ≤ 8 mm.
Fig. 10.8Cover flaps on ON/OFF pushbutton forthe circuit-breaker can be locked bymeans of a padlock (optional).
Fig. 10.9Mechanical lock-out of earthing switchvia padlock
Fig. 10.12Mechanical lock-out for shutter (sameprinciple for left-hand and right-handsides)
Fig. 10.13Interlock of truck (optional)
10 Operation
Fig. 10.10Manual switching ON of circuit-breakerlocked by padlock
Fig. 10.11Manual switching OFF of circuit-breakerlocked by padlock
10.4.4 Interlocks by means of cylinder locks (optional)
12
3
4
5
10.4.5 Supplementary interlocks
Further mechanical lock-outs and additional interlocks can be provided asspecified in the contract..
Fig. 10.141 Interlocking of earthing switch in closed condition2 Interlocking of earthing switch in open condition
Fig. 10.153 Interlock of truck
Fig. 10.164 Interlocking of front door
Fig. 10.175 Interlocking of cable compartment
cover
PIX 12–17–24 kV | Installation – Operation – Maintenance 63
10 Operation
64 PIX 12–17–24 kV | Installation – Operation – Maintenance
10.5 Operating specifications
The switchgear unit may only be operated by specialist electricians who haveproven experience (training certificate) in conjunction with the PIX 12-17-24kV series and all the relevant safety standards.
Refer also to the safety provisions in Chapter 1.
Warning!To rule out faulty switching, the operating sequences described be-low must be complied with. Each switching operation must be com-pleted.
Check whether the supply voltage is ON.
Important:● After each switching operation for which you have used a crank or a
lever, remove this device and store it in the tool board.
● In case supply voltage is not available:
– blocking coils (locking the interrogation slides and circuit-breakerpushbuttons, depending on design) are in “locked” position.
– an undervoltage release (optional) has dropped out.
Measure: Re-establish the supply voltage.
10 Operation
PIX 12–17–24 kV | Installation – Operation – Maintenance 65
10.6 Operating the circuit-breaker
10.6.1 Charging the circuit-breaker’s energy storing device
– Circuit-breaker OFF
– Energy storing device released.
1. Open cover (Fig. 10.18, 1) andinsert crank (2).
2. Turn clockwise (3), until thecharge drive mechanism is un-coupled (sound). The energystoring device indicates the“charged” condition (4).
3. Remove crank.
The energy-storing device ischarged automatically as soon asthe motor’s supply voltage is ap-plied. The position indicator of theenergy storing device indicates the“charged” condition (Fig. 10.18, 4).
10.6.2 Operating the circuit-breaker manually
Insert the operating rod into the right-hand guide of the front door and press itright to the back (Fig. 10.19, 1). The circuit-breaker is switched ON; the posi-tion indicator indicates "ON“ (2).
The energy storing device can be charged again immediately after switchingON (by hand or by motor). If supply voltage is present, the energy storage de-vice is charged automatically.
Insert the operating rod into the left-hand guide of the front door and press itright to the back (Fig. 10.20, 3). The circuit-breaker is switched OFF. The po-sition indicator indicates "OFF" (4).
Charging via motor
Switching OFF via the operating rod
Switching ON via the operating rod
Initial situation:
Charging by hand
2
1
3
4
Fig. 10.20Switching the circuit-breaker OFF via theoperating rod1 Operating rod2 Position indicator reads: Circuit-
breaker OFF
Fig. 10.19Switching the circuit-breaker ON via theoperating rod1 Operating rod2 Position indicator reads: Circuit-
breaker ON
L3L1
L2
1
23
4
Fig. 10.18Charge energy storing device of circuit-breaker manually1 Open cover2 Insert crank3 Turn clockwise4 Position indicator, energy-storing de-
vice (charged)
10 Operation
66 PIX 12–17–24 kV | Installation – Operation – Maintenance
Press the left-hand lever down (Fig. 10.21, 1). To switch ON, press the blackpushbutton (right-hand - 2). The circuit-breaker is switched ON. The positionindicator indicates "ON" (3).
The energy storing device can be charged immediately after switching ON (byhand or by motor). If supply voltage is present, the energy storage device ischarged automatically.
Press the left-hand lever down (Fig. 10.22, 4). To switch OFF, press the redpushbutton (left-hand - 5). Circuit-breaker is switched OFF. The position indi-cator indicates "OFF" (6).
10.6.3 Switching the circuit-breaker electrically
Actuate closing release via bay computer or remote control.
The energy storing device can be charged immediately after switching ON (byhand or by motor). If voltage is applied to the motor, charging is performed au-tomatically.
● Actuate the opening release via the bay computer or the remote control
● by undervoltage release or
● by secondary release
10.6.4 Position indicators on circuit-breaker and possible operating sequences
Switching OFF (Opening)
Switching ON (Closing)
Switching OFF via pushbutton(optional)
Switching ON via pushbutton(optional)
3
1
2
6
4
5
Fig. 10.22Switching circuit-breaker OFF via push-button4 Press lever down5 Press push-button O6 Position indicator reads: Circuit-
breaker OFF
Fig. 10.21Switching circuit-breaker ON via push-button1 Press lever down2 Press pushbutton I3 Position indicator reads: Circuit-
breaker ON
10 Operation
Item Position indicator forenergy-storing device(spring mechanism)
Position indicatorfor circuit breaker
ON/OFF
Possibleoperatingsequence
1 released OFF none
2 charged OFF C – O
3 released ON O
4 charged ON O – C – O
C = Switching ON (Closing) O = Switching OFF (Opening)
PIX 12–17–24 kV | Installation – Operation – Maintenance 67
10.7 Move truck into service/disconnected position
Warning!Trucks may on principle only be moved into service or disconnectedposition when de-energized. Switch circuit-breaker and vacuumcontactor OFF or, in case of disconnector truck UTX, isolate thefeeder.
Important:Do not pull the crank out before the truck in question has reached its end po-sition; do not pull it out in an undefined intermediate position.
Initial situation:
● Circuit-breaker OFF
● Earthing switch OFF
10.7.1 Racking-in the truck from disconnected into service position
1. Open cover (Fig. 10.23, 1) and insert crank (2).
2. Turn crank clockwise (3) until the truck has been racked in. Removecrank.
3. Check position of truck (Fig. 10.24) through the inspection glass.
10.7.2 Racking-out the truck from service into disconnected position
1. Open cover (Fig. 10.25, 1) and insert crank (2).
2. Turn crank counter-clockwise (3) until the truck has been racked out. Re-move crank.
3. Check position of truck (Fig. 10.26) through the inspection glass.
10 Operation
L3L1
L2
3 21
Fig. 10.231 Open cover2 Insert crank3 Turn crank clockwise
Fig. 10.24Truck in service position
3
L3L1
L2
2
1
Fig. 10.251 Open cover2 Insert crank3 Turn crank counter-clockwise
Fig. 10.26truck in disconnected position
10.8 Vacuum contactor CVX
Whether the vacuum contactor CVX is switched on or off is indicated directlyon the device (Fig. 10.27 and 10.28).
The vacuum contactor CVX is switched on and off by means of a remote con-trol device or the control and protection device GEMSTART (see switchgeardocumentation).
This feature is only available for mechanically latched vacuum contactors CVX.
In this case, the vacuum contactor CVX can be switched off directly on thepanel (Fig. 10.29 and 10.30).
● Insert operating rod through the guide hole in the front door until the vac-uum contactor switches OFF (Fig. 10.29). Check the position indicator(Fig. 10.28).
● Alternatively: Switching off by means of a pushbutton (Fig. 10.30). To thiseffect, move the lever (1) downwards to its stop and press the OFF push-button (2). Check the position indicator (Fig. 10.28).
Switching OFF manually (optional)
Switching
Position indicator
Fig. 10.271 Vacuum contactor ON
CVX
1
Fig. 10.282 Vacuum contactor OFF
CVX
2
Fig. 10.30Switching OFF the vacuum contactorCVX by means of a push-button1 Press lever down2 Press pushbutton O
1
2
Fig. 10.29Switching OFF the vacuum contactorCVX by means of an operating rod
68 PIX 12–17–24 kV | Installation – Operation – Maintenance
10 Operation
PIX 12–17–24 kV | Installation – Operation – Maintenance 69
10.8.1 Fuse tripping
The inspection port of the vacuum contactor on the panel front indicates thefuse tripping status:
1. Put vacuum contactor to disconnected position and move it out of thepanel. This approach corresponds to the description in Chapter 4.3.4 withthe HVX truck.
2. Always exchange all three fuses. Fuse replacement is described in theOperating Manual of the vacuum contactor CVX (no. NTV 132).
Measures to be taken in case offuse tripping
CVX
1
CVX
23
10 Operation
Fig. 10.311 Indicator green: no fuse tripped
Fig. 10.322 Indicator red: one or several fuses
have tripped3 Switch position indicator: vacuum
contactor has switched off automati-cally
10.9 Operating the earthing switch manually
Initial situation:
● Circuit-breaker OFF
● Truck in disconnected position
10.9.1 Switching ON the earthing switch
1. Push the slide (Fig. 10.33, 1) upwards and insert the control lever of theearthing switch with the lever rod pointing upwards (2).
2. Turn the lever clockwise by approx. 95° (3).
3. Check position indicator. It must indicate that the earthing switch is ON(Fig. 10.34, 4). Remove lever.
10.9.2 Switching earthing switch OFF
1. Push the slide (Fig. 10.35, 1) upwards and insert the control lever of theearthing switch with the lever rod pointing to the right (2).
2. Press the lever counterclockwise by approx. 95° (3).
3. Check position indicator: It must indicate that the earthing switch is OFF(Fig. 10.36, 4). Remove crank.
70 PIX 12–17–24 kV | Installation – Operation – Maintenance
4
1
23
Fig. 10.33Switch earthing switch ON:1 Press slide upwards2 Insert the operating lever3 Turn operating lever clockwise
Fig. 10.344 Position indicator reads: Earthing switch is turned ON
412
3
Fig. 10.35Switch earthing switch OFF1 Press slide upwards2 Insert the operating lever3 Turn operating lever counterclock-
wise
Fig. 10.364 Position indicator reads: earthing switch is OFF
10 Operation
10.10 Standard switching operations
Important:Observe the switching provisions (Chapter 10.5) and the interlocking condi-tions (Chapter 10.4).
10.10.1 Operating feeder cable
Initial situation:
● Circuit-breaker OFF
● HVX truck in disconnected position
● Earthing switch OFF
Switch feeder cable ON
1. Move truck into service position (1).
2. Switch circuit-breaker ON (2).
Switch feeder cable OFF
1. Switch circuit-breaker OFF.
2. Move truck into disconnected position.
10.10.2 Earthing the feeder cable
Initial situation:
● Circuit-breaker OFF
● HVX truck in disconnected position
● Earthing switch OFF
Earthing feeder cable
Switch the earthing switch ON (1).
De-earthing
Switch the earthing switch OFF.
PIX 12–17–24 kV | Installation – Operation – Maintenance 71
Fig. 10.37Switch feeder cable ON
12
Fig. 10.38Earthing feeder cable
1
10 Operation
10.10.3 Coupling busbar sections via bus section coupler
Initial situation:
● Circuit-breaker OFF
● both trucks (HVX, UTX) in disconnected position
● Earthing switch OFF
Coupling the sections
1. Move both trucks into service position (1).
2. Switch circuit-breaker ON (2).
Uncoupling
1. Switch circuit-breaker OFF.
2. Move both trucks into disconnected position.
Initial situation:
● Circuit-breaker OFF
● HVX truck in disconnected position
Coupling the sections
1. Move truck into service position (1).
2. Switch circuit-breaker ON (2).
Uncoupling
1. Switch circuit-breaker OFF.
2. Move truck into disconnected position.
With HVX truck
With HVX and UTX truck
72 PIX 12–17–24 kV | Installation – Operation – Maintenance
10 Operation
Fig. 10.39Coupling busbar sections via bus section coupler and HVX and UTX trucks
1
2
1
Fig. 10.40Coupling busbar sections via bus section coupler and HVX truck
1
2
PIX 12–17–24 kV | Installation – Operation – Maintenance 73
10 Operation
10.11 Earthing the busbar
Warning!The trucks (HVX, UTX) in the appropriate busbar sections must bein disconnected position.
Important:Observe the switching provisions (Chapter 10.5) and the interlocking condi-tions (Chapter 10.4).
10.11.1 Earthing the busbar with the circuit-breaker of an feeder panel
The earthing device can be connected to a free cable terminal in the cablecompartment (access: see Chapter 4.2). If necessary, remove cable. Theearthing device and the earthing adapter are not included in the scope of sup-plies.
Important:Comply with the specifications of the manufacturer of the earthing device and- if applicable - the earthing adapter.
Initial situation:
Feeder cable EARTHED
● Earthing switch ON
● Circuit-breaker OFF
● HVX truck in disconnected position
Earthing the busbar:
1. Connect earthing device in cable compartment (1).
2. Switch the earthing switch OFF (2).
3. Move truck into service position (3).
4. Switch circuit-breaker ON (4).
De-earthing:
1. Switch circuit-breaker OFF.
2. Move truck into disconnected position.
3. Switch the earthing switch ON.
4. Remove the earthing device.
Fig. 10.41Earthing the busbar with the circuit-breaker of an feeder panel
1
2
43
10.11.2 Earthing the busbar with busbar earthing switch in the metering panel
Initial situation:
● Earthing switch OFF
● Metering truck MTX in service position
Earthing the busbar
Switch the earthing switch ON (1).
De-earthing
Switch the earthing switch OFF.
10.11.3 Earthing the busbar with busbar earthing switch
Initial situation:
• Busbar earthing switch OFF
Earthing the busbar
Switch the earthing switch ON (1).
De-earthing
Switch the earthing switch OFF.
74 PIX 12–17–24 kV | Installation – Operation – Maintenance
10 Operation
Fig. 10.42Earthing the busbar with busbar earthing switch in the metering panel
1
Fig. 10.43Earthing the busbar with busbar earthing switch
1
11.1 Safety provisions
Only specialist electricians certified by the manufacturer for maintenance workand who have the required knowledge regarding handling of medium-voltageswitchgear of the series PIX 12-17-24 kV and all the relevant safety provisionsare permitted to perform maintenance and cleaning work.
Warning!Refer to the safety provisions in Chapter 1.
11.2 Servicing schedule
We recommend performing a visual inspection of the panels at least every fouryears, depending on the strain to which they are subjected during operationand the operating conditions.
Important:In case of humidity and condensation or air pollution (dust, smoke or corro-sive gases), the maintenance intervals must be adapted to the actual condi-tions.
For cleaning and maintenance work, please refer to Chapter 4 "Access to themain circuit compartments".
In case of ambiguities or irregularities, please contact the manufacturer’s Serv-ice Center immediately.
11 Maintenance
PIX 12–17–24 kV | Installation – Operation – Maintenance 75
Maintenance interval for ambientconditions according toIEC 62271-1
Work to be carried outQualification /Work performed by
4 years or depending on the actualambient conditions
● Check panels completely for contamination,condensation and damage, e.g. due to partialdischarge
● Clean panels, if necessary (see Chapter 11.3).Perform a manual switching test of the drivesand check interlocks and position indicators(see Chapter 10)
● Repair damage or replace components (seeChapter 11.5 and 11.6)
Staff who have beencertified for this work
12 years
● Clean and grease drives and movable main cur-rent contacts (see Chapter. 11.7)
● Check releases and blocking coils for properworking order
● Check tightening torque of busbar screw fas-tenings
Circuit-breaker truck HVXMetering truck MTXDisconnector truck UTXVacuum contactor CVX
Refer to the applicable instruction manual for the truck concerned:AGS 531461-01, AGS 531301-01AGS 531361-01AGS 531361-01NTV 133
After 1,000 actuations of the truckor the earthing switch
Revision of the switching device in questionManufacturer’s ServiceCenter
11.3 Cleaning
To ensure the specified insulating level, the insulating components must beclean and dry. On principle, cleanliness deserves utmost attention. When de-posited dirt and humidity are detected, the panels must be cleaned in an ex-pert fashion.
When performing cleaning, make sure that the lubrication in the drive mecha-nisms is not removed. If the drive mechanisms are no longer sufficiently lubri-cated, new lubrication must be applied.
Warning!Risk of injuries: The drives must not be disassembled for serviceand maintenance work.
Clean using a dry, lint-free cloth. Depending on the degree of soiling, replacecloth as often as necessary.
Use cleaning agent, 1 litre can (see Chapter 12.1). The use of other cleaningagents is not admissible.
● Wear protective gloves
● Use cleaning agent according to manufacturer's instructions
● Soak the cloth thoroughly and wipe the insulating components. Keep du-ration of exposure as short as possible.
● Expose the cleaned surface to the air for at least two hours.
11.4 Avoid condensation
To ensure the specified insulating level, the switchgear panel – especially itsinsulating components – must not be exposed to condensation.
1. Should condensation be detected in or on the panel, clean the panel inaccordance with Chapter 11.3.
2. Installation or inspection of panel heating. It must provide a sufficient heat-ing performance to prevent condensation on the panel.
11.5 Corrosion protection
Drive mechanisms and covers have a long-term protection against corrosion.Any damage to the paint, scratches and other damage must be repaired imme-diately to avoid corrosion.
Contact the manufacturer’s Service Center.
11.6 Replacement of components and panels
The drive mechanisms, current transformers and voltage transformers as wellas the testing and monitoring systems can be replaced if necessary. Also, en-tire panels can be replaced.
The following data on the nameplate are relevant for replacement of compo-nents or panels or in case of any queries (see also Chapter 2.6):
● Type designation
● Serial number
● Year of construction
Should you have any queries regarding replacement of components or panels,please contact the manufacturer's Service Center.
Measures to take in case ofcondensation
Serious contamination
Slight contamination
76 PIX 12–17–24 kV | Installation – Operation – Maintenance
11 Maintenance
11 Maintenance
11.7 Lubrication instructions
Warning!Risk of injuries: Circuit-breakers and drives must not be disassem-bled for lubrication.
Important:Only approved lubricants may be used (see Chapter 12.1).
The following elements must not be lubricated:
– Motor– Ball bearings– Auxiliary releases– Push switches– Blocking coils– Auxiliary switches
1. Remove truck from the panel(see Chapter 4.3.4).
2. To get access to the fixed con-tacts behind the shutters, use ashutter lift (Fig. 11.1). Handlingof the shutter lift corresponds tothat of standard trucks (HVX,UTX).
3. Clean lubrication points using alint-free cloth; use cleaningagent in case of serious contam-ination (see Annex).
Preparation
Points oflubrication
Lubricant Lubrication procedure
Sliding contact sur-faces
KL
Clean by means of lint-free cloth; usecleaning agent in case of serious con-tamination. Apply a thin and uniformfilm of lubricant.
All accessible fric-tion points and slid-ing surfaces
KL
Clean lubricating points using a lint-free cloth or a soft paint-brush, if nec-essary using cleaning agent (use spar-ingly, just moisten points of lubrica-tion).Apply a thin coat of lubricant (usinge.g. a paintbrush).
Bearings and joints FL
Pour drops of liquid lubricant (oil can,drip feed lubricator) into the bearinggap. Liquid lubricant gets between thebearing surfaces due to the capillaryeffect. In case of inaccessible lubrica-tion points, use an extension tube orspray.
Lubrication
PIX 12–17–24 kV | Installation – Operation – Maintenance 77
Fig. 11.1Shutter lift for a panel width of 650 mm:Item number ADM I25 125-01for panel width 800/1000 mm:Item number ADM I25 126-01
78 PIX 12–17–24 kV | Installation – Operation – Maintenance
● Remove all the tools and auxiliary equipment used.
● Reinsert truck into the panel (see Chapter 4.3.5).
● Reposition covers, close doors and check switching functions (see Chap-ter 8 "Commissioning").
11.8 Replacing fuse of voltage transformer
1. Switch ON the panel's earthing switch.
2. Remove cable compartment cover (see Chapter 4.2).
3. Pull fuse (Fig. 11.2, item 3) carefully out of the clamping contact. Checkcontact surfaces for cleanness and, if necessary, clean (see section 11.3).Insert new fuse; remount cable compartment cover.
See Operating Manual AGS 531361-01.Voltage transformer on meteringtruck MTX
Voltage transformer in feeder cable
Once maintenance work iscomplete:
6
3
4
57
8
1
2
Fig. 11.2Points of lubrication/maintenance1 Earthing switch operating mechanism2 Earthing switch contacts3 Fuse of voltage transformer (optional)4 Tracks for truck5 Shutter mechanism6 Fixed contacts for the truck7 Switching device (lubricate in accordance with lubricating instructions in the appropriate operating manual HVX/UTX/MTX)8 Trolley, handling: see Chapter 12.5
11 Maintenance
12.1 Auxiliary products
The auxiliary products are available from the manufacturer. The use of alterna-tive auxiliary products is not permissible.
Warning!Risk of injury in case of inappropriate handling. Observe the safetydata sheets of the manufacturers of the auxiliary products.
12.2 Treatment of firmly screw-connected contact surfaces
Important:Caution when handling bars insulated by heat-shrinkable sleeves: The heat-shrinkable sleeve must not get into contact with lubricant (swelling).
Important:Contact areas coated with lubricant KL should not be touched, if possible.
1. Contact areas must be subjected to preliminary treatment before screw-fastening (see Table).
2. Immediately after the preliminary treatment, coat contact surfaces com-pletely with a thin and uniform film of lubricant KL.
1 Clean by means of lint-free cloth; use cleaning agent in case of serious contami-nation (see above)
2 Expose metallic surface– by treating the entire surface with emery cloth or a rotating grinding tool (grain
size 100 or 80) or– using a wire brush which is clearly marked for use exclusively for aluminium or
exclusively for copper3 using a brass brush, steel brush4 rub slightly by hand using Scotchbrite abrasive agent (Ni layer must not be re-
duced)
12 Annex
PIX 12–17–24 kV | Installation – Operation – Maintenance 79
Auxiliary product Item no.
Cleaning agent S 008 152
Lubricant KL, 0.5 kg can ST 312-111-835
Liquid lubricant FL, 0.5 kg can S 008153
Repair paint, 500 g can, RAL 7044, silk-grey S 009 492
Material of contact surfaces Pre-treatment
Silver-plated contact surfaces Clean1
Nickel-plated contact surfaces Remove passivation layer4
Copper or copper alloy Clean 1, expose metallic surface2
Aluminium Clean 1, expose metallic surface2
Steel Clean 1, expose metallic surface2
Zinc-plated steel Remove passivation, not the zinc layer3
Hot-galvanized sheet-metal Clean 1, passivation need not be removed
12.3 Screw fastenings
The following elements must beused for all screw fastenings:
● Screws and bolts: Grade ≥ 8.8
● Nuts: Grade 8
Important:Do not grease screws or nuts.
80 PIX 12–17–24 kV | Installation – Operation – Maintenance
12 Annex
Cutter
Nail puller
approved torque wrenches with different bits forhexagon socket screws and socket-head screws andnuts; bits for screw and nut grades M 5, M 6, M 8,M 10, M 12
Screwdriver and Philips screwdriver
Cutting pliers
4 crane straps/chains of L ≥ 2000 mm
lint-free, clean rags
Threadsize
Tightening torque[Nm]
min. max.
M5 3.8 4.7
M6 7 9
M8 16 24
M10 36 44
M12 63 77
Threadsize
Tightening torque[Nm]
min. max.
M6 5 7.5
M8 12 18
M10 24 38
M12 36 54
Table 1:Hex. bolts and socket-head capscrews(except slotted screws) and nuts (exceptself-locking nuts)
Table 2:Screw fastening with casting nuts in castresin parts (transformer and post insula-tor)
Threadsize
Tightening torque[Nm]
min. max.
M6 5.5 7.5
M8 15 19
M10 30 40
M12 60 76
Table 3:Screw fastening for current transmission,conductor material: copper
12.4 Required tools (not included in the scope of supplies
1
9
1011
12
8
2 3 4
5
6
7
Rated voltage Ur of thepanel [kV]
Panel width [mm] Truck Item number of trolley
≤ 12
650/800 HVX/UTX/MTX/CVX EIB AE1 148-011
1000HVX/UTX (Ir = 2500 A) EIB AE1 148-02
HVX/UTX (Ir = 3150 A) AGS C74 125-01
≤ 17.5
750 HVX/UTX/MTX/CVX EIB AE1 148-011
1000HVX/UTX (Ir = 2500 A) EIB AE1 148-02
HVX/UTX (Ir = 3150 A) AGS C74 125-01
24800 HVX/UTX/MTX/CVX EIB AE1 148-011
1000 HVX/UTX (Ir = 2500 A) EIB AE1 148-02
1 The trolley can be used for panel widths of 650, 750 and 800 mm:
1. Release 3 screws on each track (Fig. 12.1, 2).
2. Adjust the two tracks to the appropriate panel track width and checkthem. Re-mount the six screws.
3 Adapt position of unlocking bar (10) also to the appropriate panel (sameprocedure).
Adjusting the track width
1 Autonomous interlocking of theracked-in truck on the trolley
2 Variable screw fastening of track3 Positioning of track to adjust the vari-
ous track widths4 Track5 Interlocking with panel6 Variable screw fastening of unlocking
bar7 Positioning of unlocking bar to match
various panel versions8 Tray for accessories (lever, keys, han-
dle)9 Lever to lock / unlock the transport
trolley on the panel. Table of trolley islifted or lowered.
10. Unlocking bar. The truck is unlockedin the panel.
11 Handles of trolley12 Slide to unlock the truck from the
trolley
Fig. 12.1Transport trolley for truck
PIX 12–17–24 kV | Installation – Operation – Maintenance 81
12.5 Operation accessories
12.5.1 Transport trolley for truck
12 Annex
Description Assembly drawing Chapter
Panel fastening on concrete foundations SEM102173-01 5.5
Screw-fastening the panels to one another SEM102056-01 5.7
Mounting the low-voltage compartments AGS C73 180-01 7.2
Mounting an additional cable duct AMT 000 376-01 7.4.2
12.6 List of the assembly drawings
List of all assembly drawings specified in this manual.
This does not apply to special modules or customer-specific special designs.
According to the switchgear configuration in question, only such drawingsfrom the list are supplied by the factory as are actually required.
12 Annex
82 PIX 12–17–24 kV | Installation – Operation – Maintenance
12.5.2 Handling crane for trucks (optional)
Fig. 12.2Handling crane for trucksItem no. AGSC73258-01
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–©–AREVA
–2008.AREVA
,the
AREVA
logo
andanyalternativeversionthereofaretradem
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andservicemarks
ofAREVA
Theothernames
mentioned,registered
ornot,arethepropertyoftheirrespectivecompanies
–389191982RCSPA
RIS–Creation:WABIngenieurdienstleistungsGmbH
Bayreuth–PrintedinGermany
AREVA T&D Worldwide Contact Centre
http://www.areva-td.com/contactcentre/
� +44 (0) 1785 250 070
www.areva-td.com